Jump wayyy off the top of the screen

From Glitches

From the game Super Smash Bros. Melee for the Nintendo Gamecube

You'll need two controllers to be able to do this, and hopefully two people. Make both of them Luigi, and go to a fairly stationary stage. Now, stand both of the Luigis at the topmost area of the stage and have them face each other. Make one Luigi jump and then have the other use his B+up attack. Immediately have the first Luigi hit B+up. Repeat this, alternating which one does the B+up attack and you'll go very, very high. This can last forever if your timing is good. Unfortunately, sometimes you'll hit a Luigi off the screen and kill him. But, if you can keep this up for long enough, you will sometimes go too far off the screen and loop over to the bottom of the level. (The circles of the two Luigis will suddenly be at the very bottom instead of at the very top).

Submitted by: Jesse